Great tutorial. Not as hard as I thought it would be. I used a hairdryer as heat. I should have coughed up a few more bucks for the iopener. I had no luck with using tape to get suction on a cracked screen like I have done successfully on an iPhone. After a ton of heat I used a razor blade to peel up the digitizer edge and go from there with picks. You should also wear safety glasses as chips flew everywhere.
The worst part was cleaning the old glue and cleaning the screen before installing the new digitizer. Also those antennas at the bottom of the iPad are a bit fragile. I did not touch them with picks but I did damage one during cleaning of old adhesive. Seems to work fine though.
EDIT - I agree the guide could have used some tips for reassembly. The ribbon cables are a bit tricky to get folded in there and the adhesive complicated things. Also there is a clear protector on the inside of the digitizer.